Replaceable Tooth Plates - G Jaws; Jaw And Tooth Rebuild Procedure: S, C, And G Jaws - NPK M20S Instruction Manual

JAW INSPECTION AND MAINTENANCE
REPLACEABLE TOOTH PLATES – G JAWS
Another alternative is to replace the entire bolt-on plates.
The male jaw tooth plate (BE) is part number M3802-9500 (M38G), M2802-9500
(M28G) and M2002-9500 (M20G)

JAW AND TOOTH REBUILD PROCEDURE: S, C, and G JAWS

Due to the abrasive nature of the material being crushed, jaw wear will occur on the
M20, M28, and M38 Processors with S, C, and G jaws. The jaws must be built up with
hard face weld when the clearance between the tip of the jaws in the closed position is
worn to the extent that the material can no longer be crushed efficiently.
To ensure maximum crushing performance of the Processors, this rebuild procedure,
comprised of three steps, should be followed:
1. Surface Preparation.
2. Underlayment Weld.
3. Hard Face Weld.
1. SURFACE PREPARATION
Grind the entire worn area until it is smooth and clean. Remove all paint, grease, oil,
dirt, and old hard facing material before welding.
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